ASTM A653M Grade 340 Galvanized Steel Sheet 0.12-3.0mm Thickness 30-275g/m² Zinc Coating
Price:
520-560usd/ton
MOQ:
20 tons
Delivery Time:
10-20 working days
Brand:
JERO STEEL
Product Description
ASTM A653M Grade 340 hot-dipped galvanized steel sheets provide exceptional corrosion resistance for demanding industrial applications in construction, automotive, and manufacturing sectors.
Surface Finish Options
Our galvanized steel features three distinct surface patterns formed during the zinc crystallization process:
Zero Spangle
Smooth, uniform surface with minimal visible zinc crystals, offering superior coating density and aesthetic appeal.
Electro-Galvanized
Bright, smooth finish with fine metallic luster and no visible spangles for premium appearance.
Regular Spangle
Distinctive petal-like crystal pattern providing strong visual impact and enhanced surface texture.
Technical Specifications
| Parameter | Specification |
|---|---|
| Standard | ASTM A653 / JIS G3302 |
| Base Material | Cold Rolled Coil |
| Thickness | 0.12-3.0 mm |
| Width | 600-1500 mm |
| Zinc Coating | 30-275 g/m² |
| Surface Treatment | Chromated / Oiled / Un-oiled (Dry finish) |
| Spangle Options | Zero Spangle / Regular Spangle / Big Spangle |
| Hardness Grades | Soft (HRB 60) / Medium Hard (HRB 60-85) / Full Hard (HRB 85-95) |
Available Export Forms
We supply galvanized steel in three convenient forms to meet your specific application requirements:
- Coil form for continuous processing applications
- Strip form for precision manufacturing needs
- Sheet form for direct fabrication and assembly
Standard Width Options
| Inches | Millimeters | Inches | Millimeters |
|---|---|---|---|
| 24" | 610 mm | 40" | 1000 mm |
| 30" | 762 mm | 48" | 1219 mm |
| 36" | 914 mm | 50" | 1250 mm |
Custom widths including 18", 96", and other specifications are available upon request to meet specialized industrial requirements.
Quality Assurance
Our comprehensive quality control system ensures consistent product performance through rigorous testing protocols:
Mechanical Properties Testing
- Room-temperature and high-temperature mechanical tests
- Brinell, HRC, Vickers, and micro-hardness measurements
- Expansion, flattening, cupping, bending, and compression analysis
Metallurgical & Corrosion Analysis
- Macrostructure analysis and fracture detection
- Conductivity/resistance and density measurements
- Grain size analysis and hydrogen embrittlement testing
- Residual stress measurement and dezincification corrosion analysis
- Salt spray testing and annealing process verification
Dimensional & Surface Measurement
- Surface roughness and burr angle assessment
- Radius and inner/outer diameter precision measurement
Shipping & Packaging
We ensure your galvanized steel arrives in perfect condition through meticulous packaging and handling procedures:
- Careful loading with balanced weight distribution
- Flat stacking and secure fastening to prevent movement
- Comprehensive scratch and moisture protection
- Multiple desiccants included to maintain optimal dryness
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Qingdao Jero Steel Co., Ltd.
Location
NO.205 Zhengyang Road, Chengyang District, Qingdao,China
Contact Person
Gary Lee